<template>
  <header class="header">
    <h1>todos</h1>
    <input id="toggle-all" class="toggle-all" type="checkbox" >
    <label for="toggle-all"></label>
    <input @keydown.enter="add" v-model.trim="text" class="new-todo" placeholder="输入任务名称-回车确认" autofocus/>
  </header>
</template>

<script>
export default {
    props:['list'],
    data(){
        return{
            text:''
        }
    },
 methods:{
     add(){
         if(this.text==''){
             return alert('不能为空')
         }
        this.$emit('addTack',this.text)
        this.text=''
     }
 }
}
</script>